private async void btnRecover_Clicked(object sender, EventArgs e)
{
try
{
List <ImageInfo> listImages = new List <ImageInfo>();
if (Selected >= 1)
{
listImages = TrashImages.Where(x => x.Selected == true).ToList <ImageInfo>();
}
else
{
listImages = TrashImages.ToList <ImageInfo>();
}
bool answer = await RecoverConfirmNotifications(listImages.Count);
if (answer)
{
foreach (ImageInfo _image in listImages)
{
FileManager.RestoreFile(_image.ImagePath);
}
await LoadBitmapCollection();
ShowToastMessage("Photos moved to unsorted!");
}
}
catch (Exception ex)
{
await DisplayAlert("Error", "An error has ocurred: " + ex.Message, "OK");
}
}
private async Task AddImage(string filepath)
{
string imagePath = await Task <string> .Factory.StartNew(() => FileManager.GetCompressedImage(filepath, 150, 150));
Device.BeginInvokeOnMainThread(async() =>
{
CachedImage image = new CachedImage
{
Source = await Task <ImageSource> .Factory.StartNew(() => ImageSource.FromFile(imagePath)),
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
HeightRequest = 120,
WidthRequest = 120,
Aspect = Aspect.Fill,
AutomationId = filepath,
IsOpaque = true,
BackgroundColor = Color.Gray
};
image.DownsampleToViewSize = true;
image.CacheDuration = new TimeSpan(5, 0, 0, 0);
var tapGestureRecognizer = new TapGestureRecognizer();
tapGestureRecognizer.NumberOfTapsRequired = 1;
tapGestureRecognizer.Tapped += (s, e) =>
{
ImageInfo ui = TrashImages.Where(x => x.ImagePath == image.AutomationId).First();
if (image.BackgroundColor == Color.White)
{
image.BackgroundColor = Color.Transparent;
image.Opacity = 1;
Selected--;
ui.Selected = false;
}
else
{
image.BackgroundColor = Color.White;
image.Opacity = 0.25;
Selected++;
ui.Selected = true;
}
setButtonBindings(Selected);
};
image.GestureRecognizers.Add(tapGestureRecognizer);
Grid.SetColumn(image, colPosition);
Grid.SetRow(image, rowPosition);
flexLayout.Children.Add(image);
colPosition++;
if (colPosition == 3)
{
colPosition = 0;
rowPosition++;
}
});
}
async Task LoadBitmapCollection()
{
setButtonBindings(Selected);
try
{
Selected = 0;
await Task.Run(async() =>
{
TrashImages.Clear();
Device.BeginInvokeOnMainThread(() =>
{
flexLayout.Children.Clear();
});
ImageList imageList = FileManager.GetTrashImages();
foreach (string filepath in imageList.Photos)
{
TrashImages.Add(new ImageInfo(filepath));
}
rowPosition = 0;
colPosition = 0;
if (TrashImages.Count > 0)
{
foreach (ImageInfo _image in TrashImages)
{
await AddImage(_image.ImagePath);
}
}
else
{
AddEmptyTrashMessage("Empty Trash...", 18);
}
});
}
catch (Exception ex)
{
AddEmptyTrashMessage(string.Format("Cannot access list of bitmap files: {0}", ex.Message), 12);
}
finally
{
}
}